Note 2. Per Share Amounts

Per share information has been computed based on the weighted average number of common shares and dilutive common share equivalents outstanding. The computation for the three and nine-month periods ended September 30, 2017 excluded approximately 14,000 stock options, respectively, because the exercise price of the options was higher than the average market price during those periods. The computation for the three-month period ended September 30, 2016 excluded approximately 571,000 stock options and the nine-month period ended September 30, 2016 excluded approximately 600,000 stock options and 200,000 common stock warrants, because the exercise price of the options or warrants was higher than the average market price during those periods.

The following table sets forth the computation of basic and diluted earnings per share for the three and nine-month periods ended September 30, 2017 and 2016:

	Three Months ended September 30,				Nine Months ended September 30,
	2017		2016		2017		2016
Net income attributable to American Shared Hospital Services	$	99,000	$	334,000	$	505,000	$	478,000

Weighted average common shares for basic earnings per share		5,947,000		5,554,000		5,745,000		5,553,000
Diluted effect of stock options and restricted stock		94,000		39,000		167,000		11,000
Weighted average common shares for diluted earnings per share		6,041,000		5,593,000		5,912,000		5,564,000

Basic earnings per share	$	0.02	$	0.06	$	0.09	$	0.09
Diluted earnings per share	$	0.02	$	0.06	$	0.09	$	0.09